| Keeping warm
Rattlesnakes gather in groups to sleep through the winter and you may surprised at how big the groups can get.
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| Drinking and body temperature
What happens to your body temperature when you drink and why?
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| Lots of mouths to feed
The Mola Mola, or Ocean Sunfish, can lay up to this many eggs at one time.
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| Big tusks
How big were the woolly mammoth's tusks?
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| Quite a workout
It's been estimated that an opera singer burns an average of this many calories per minute during a performance.
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| What a voice
Lauren Bacall's singing voice in her screen debut To Have and Have Not wasn't actually her own.
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| Star light, star bright
How many of the stars in our galaxy have died and produced white dwarfs?
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| Your vote really does matter
A single vote might have been the deciding factor in an historic event taking place in U.S. history.
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| Are you drinking that?
What do people in the arid regions of China wash themselves with due to the scarcity of water?
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| What's in a name
The duffel bag got its name from a town in Belgium.
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